Tamp v. t. : In blasting, to plug up with clay, earth, dry sand, sod, or other material, as a hole bored in a rock, in order to prevent the force of the explosion from being misdirected.

Tamp v. t. : To drive in or down by frequent gentle strokes; as, to tamp earth so as to make a smooth place.

Example:
Can you Tamp sandy fill that is going to be covered with patio pavers ?

Taxonomy
tamper, Tamp, espresso, coffee, barista, Ballast tamper, ground coffee, compact, free encyclopedia, gravel, Search, espresso extraction, compress, tamping iron, espresso machine, aggregate, brick patio, rail tracks.

Defination from the web:
tamp in Wiktionary, the free dictionary. A tamper is a device used to compact or flatten an aggregate, typically to make it resistant to further compression. ... Increasing the tamping pressure will increase the brew time of a shot of espresso, and thus increase the ...